On Fri, Mar 30, 2012 at 6:29 PM, Stefan Hajnoczi <stefa...@gmail.com> wrote: > On Fri, Mar 30, 2012 at 9:50 AM, <zwu.ker...@gmail.com> wrote: >> + * When all sync I/O drivers are converted to async I/O, it will be >> restored >> + * to the original state. > > The problem here is that guess_disk_lchs() uses bdrv_read(), not > whether device emulation uses sync or async I/O. Converting devices > to async I/O will not fix this. By the way, when you did testing, you applied #1 of this patchset? I think that it make sense for that assert issue to be fixed.
> > Stefan -- Regards, Zhi Yong Wu
